import java.util.Scanner;

public class OrderSystem {
    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        String[] names = new String[4];
        String[] dishMegs = new String[4];

        int[] times = new int[4];

        String[] addresses = new String[4];//保存地址
        int[] states = new int[4];//保存订单状态：0表示已预定，1表示已完成
        double[] sumPrices = new double[4];//保存订单的总金额
        names[0] = "吴浩";
        dishMegs[0] = "糖醋排骨2份";
        times[0] = 12;
        addresses[0] = "迪麦达小区8栋一单元202室";
        sumPrices[0] = 30.0;
        states[0] = 1;
        names[1] = "叶飞";
        dishMegs[1] = "麻辣鸡丁2份";
        times[1] = 12;
        addresses[1] = "迪麦达小区8栋一单元202室";
        sumPrices[1] = 20.0;
        states[1] = 0;
        //菜品信息
        String[] dishNames = {"糖醋排骨", "麻辣鸡丁", "柠檬水"};
        double[] prices = new double[]{30.0, 20.0,  10.0};
        int[] praiseNums = new int[3];
        int num = -1;//用户输入0返回菜单，否则退出系统
        boolean isExit = false;//标志用户是否退出系统，true表示退出系统
        System.out.println("\n欢迎“使用吃货联盟订餐系统”");
        do {
            //显示菜单
            System.out.println("*******************************");
            System.out.println("1、我要订餐");
            System.out.println("2、查看订单");
            System.out.println("3、签收订单");
            System.out.println("4、删除订单");
            System.out.println("5、我要点赞");
            System.out.println("6、退出系统");
            System.out.println("*******************************");
            System.out.print("请选择：");
            int choose = input.nextInt();// 输入编号
            switch (choose) {
                case 1:
                    //我要订餐
                    System.out.println("****我要订餐****");
                    boolean isAdd = false;
                    for (int i = 0; i < names.length; i++) {
                        if (names[i] == null) {
                            isAdd = true;
                            System.out.print("请输入订餐人姓名：");
                            String name = input.next();
                            // 菜品信息
                            System.out.println("序号" + "\t" + "菜名" + "\t" + "单价"+"\t"+"点赞数");
                            for (int j = 0; j < dishNames.length; j++) {
                                String price = prices[j] + "元";
                                String praiseNum = (praiseNums[j] > 0) ? praiseNums[j]
                                        + "赞" : "0";
                                System.out.println((j + 1) + "\t" + dishNames[j]
                                        + " \t" + price+"\t"+praiseNum);
                            }
                            // 点菜
                            System.out.print("请您选择要点的菜品编号：");
                            int chooseDish = input.nextInt();
                            System.out.print("请选择您需要的份数：");
                            int number = input.nextInt();
                            String dishMeg = dishNames[chooseDish - 1] + " "
                                    + number + "份";
                            double sumPrice = prices[chooseDish - 1] * number;
                            double deliCharge = (sumPrice >= 50) ? 0 : 5;// 满50免送餐费
                            System.out.print("请输入送餐时间(送餐时间是10点至20点间整点送餐)：");
                            int time = input.nextInt();
                            while (time < 10 || time > 20) {
                                System.out.print("您输入的时间有误，请输入10~20间的整数！");
                                time = input.nextInt();
                            }
                            // 订单信息
                            System.out.print("请输入送餐地址：");
                            String address = input.next();
                            System.out.println("订餐成功！");
                            System.out.println("您订的是：" + dishMeg);
                            System.out.println("送餐时间是：" + time + "点");
                            System.out.println("餐费" + sumPrice + "元,送餐费"
                                    + deliCharge + "元，总计："
                                    + (sumPrice + deliCharge) + "元");
                            names[i] = name;
                            dishMegs[i] = dishMeg;
                            times[i] = time;
                            addresses[i] = address;
                            sumPrices[i] = sumPrice + deliCharge;
                            break;
                        }
                    }
                    if (!isAdd) {
                        System.out.println("对不起，您的餐袋已满！");
                    }
                    break;
                case 2:
                    //查看订单
                    System.out.println("****查看订单****");
                    System.out.println("序号\t订餐人\t餐品信息\t\t送餐时间\t送餐地址\t\t总金额\t订单状态");
                    for (int i = 0; i < names.length; i++) {
                        if (names[i] != null) {
                            String state = (states[i] == 0) ? "已预订" : "已完成";
                            String date = times[i] + "点";
                            String sumPrice = sumPrices[i] + "元";
                            System.out.println((i + 1) + "\t" + names[i] + "\t"
                                    + dishMegs[i] + "\t" + date + "\t"
                                    + addresses[i] + "\t" + sumPrice + " \t"
                                    + state);
                        }

                    }
                    break;
                case 3:
                    //签收订单
                    System.out.println("****签收订单****");
                    boolean isSignFind = false;// 找到要签收的订单
                    System.out.print("请选择要签收的订单序号：");
                    int choose1 = input.nextInt();
                    for (int i = 0; i < names.length; i++) {
                        if (names[i] != null && states[i] == 0 && choose1 == i + 1) {
                            states[i] = 1;
                            System.out.println("订单签收成功！");
                            isSignFind = true;
                        } else if (names[i] != null && states[i] == 1
                                && choose1 == i + 1) {
                            System.out.println("您选择的订单已完成签收，不能再次签收！");
                            isSignFind = true;
                        }
                    }
                    if (!isSignFind) {
                        System.out.println("您选择的订单不存在！");
                    }
                    break;
                case 4:
                    //删除订单
                    System.out.println("****删除订单****");
                    boolean isDleFind = false;
                    System.out.println("请输入要删除的订单序号：");
                    int delId = input.nextInt();
                    for (int i = 0; i < names.length; i++) {
                        boolean isDelFind=false;
                        if (names[i] != null && states[i] == 1 && delId == i + 1) {
                            isDelFind = true;
                            for (int j = delId - 1; j < names.length - 1; j++) {
                                names[j] = names[j + 1];
                                dishMegs[j] = dishMegs[j + 1];
                                times[j] = times[j + 1];
                                addresses[j] = addresses[j + 1];
                                states[j] = states[j + 1];
                                sumPrices[j] = sumPrices[j + 1];
                            }
                            int endIndex = names.length - 1;
                            names[endIndex] = null;
                            dishMegs[endIndex] = null;
                            times[endIndex] = 0;
                            addresses[endIndex] = null;
                            states[endIndex] = 0;
                            sumPrices[endIndex] = 0;
                            System.out.println("删除订单成功！");
                            break;
                        } else if (names[i] != null && states[i] == 0
                                && delId == i + 1) {
                            System.out.println("您选择的订单未签收，不能删除！");
                            isDelFind = true;// 已找到订单
                            break;
                        }
                    }
                    if (!isDleFind) {
                        System.out.println("您要删除的订单不存在！");
                    }
                    break;
                case 5:
                    //我要点赞
                    System.out.println("****我要点赞****");
                    System.out.println("序号" + "\t" + "菜名" + "\t" + "单价");
                    for (int i = 0; i < dishNames.length; i++) {
                        String price = prices[i] + "元";
                        String praiseNum = (praiseNums[i] > 0) ? praiseNums[i]
                                + "赞" : "0";
                        System.out.println((i + 1) + "\t" + dishNames[i] + "\t"
                                + price + "\t" + praiseNum);
                    }
                    System.out.print("请选择您要点赞的菜品序号：");
                    int priaiseNum = input.nextInt();
                    praiseNums[priaiseNum - 1]++;
                    System.out.println("点赞成功！");
                    break;
                case 6:
                    //退出系统
                    isExit = true;
                    break;
                default:
                    //退出系统
                    isExit = true;
                    break;

            }
        } while (num == 0);
        System.out.println("谢谢使用！欢迎下次光临。");
    }
}
